HK1002338A1 - Method and apparatus for encryption having a feedback register with selectable taps - Google Patents

Method and apparatus for encryption having a feedback register with selectable taps

Info

Publication number
HK1002338A1
HK1002338A1 HK98100006A HK98100006A HK1002338A1 HK 1002338 A1 HK1002338 A1 HK 1002338A1 HK 98100006 A HK98100006 A HK 98100006A HK 98100006 A HK98100006 A HK 98100006A HK 1002338 A1 HK1002338 A1 HK 1002338A1
Authority
HK
Hong Kong
Prior art keywords
encryption
feedback register
selectable taps
taps
selectable
Prior art date
Application number
HK98100006A
Inventor
Larry Puhl
Louis David Finkelstein
Original Assignee
Motorola Inc
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Motorola Inc filed Critical Motorola Inc
Publication of HK1002338A1 publication Critical patent/HK1002338A1/en

Links

Classifications

    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F1/00—Details not covered by groups G06F3/00 - G06F13/00 and G06F21/00
    • G06F1/02—Digital function generators
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03K—PULSE TECHNIQUE
    • H03K3/00—Circuits for generating electric pulses; Monostable, bistable or multistable circuits
    • H03K3/84—Generating pulses having a predetermined statistical distribution of a parameter, e.g. random pulse generators
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L9/00—Cryptographic mechanisms or cryptographic arrangements for secret or secure communications; Network security protocols
    • H04L9/06—Cryptographic mechanisms or cryptographic arrangements for secret or secure communications; Network security protocols the encryption apparatus using shift registers or memories for block-wise or stream coding, e.g. DES systems or RC4; Hash functions; Pseudorandom sequence generators
    • H04L9/065—Encryption by serially and continuously modifying data stream elements, e.g. stream cipher systems, RC4, SEAL or A5/3
    • H04L9/0656—Pseudorandom key sequence combined element-for-element with data sequence, e.g. one-time-pad [OTP] or Vernam's cipher
    • H04L9/0662—Pseudorandom key sequence combined element-for-element with data sequence, e.g. one-time-pad [OTP] or Vernam's cipher with particular pseudorandom sequence generator
    • H04L9/0668—Pseudorandom key sequence combined element-for-element with data sequence, e.g. one-time-pad [OTP] or Vernam's cipher with particular pseudorandom sequence generator producing a non-linear pseudorandom sequence
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L9/00—Cryptographic mechanisms or cryptographic arrangements for secret or secure communications; Network security protocols
    • H04L9/12—Transmitting and receiving encryption devices synchronised or initially set up in a particular manner
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L2209/00—Additional information or applications relating to cryptographic mechanisms or cryptographic arrangements for secret or secure communication H04L9/00
    • H04L2209/12—Details relating to cryptographic hardware or logic circuitry
HK98100006A 1993-08-30 1998-01-02 Method and apparatus for encryption having a feedback register with selectable taps HK1002338A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US08/114,804 US5365585A (en) 1993-08-30 1993-08-30 Method and apparatus for encryption having a feedback register with selectable taps

Publications (1)

Publication Number Publication Date
HK1002338A1 true HK1002338A1 (en) 1998-08-14

Family

ID=22357530

Family Applications (1)

Application Number Title Priority Date Filing Date
HK98100006A HK1002338A1 (en) 1993-08-30 1998-01-02 Method and apparatus for encryption having a feedback register with selectable taps

Country Status (12)

Country Link
US (1) US5365585A (en)
EP (1) EP0672273B1 (en)
JP (1) JPH08503569A (en)
KR (1) KR0168504B1 (en)
BR (1) BR9405567A (en)
CA (1) CA2146439C (en)
DE (1) DE69429157T2 (en)
FI (1) FI951946A0 (en)
GB (1) GB2286274B (en)
HK (1) HK1002338A1 (en)
SG (1) SG76452A1 (en)
WO (1) WO1995006906A1 (en)

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US6993542B1 (en) * 2001-03-12 2006-01-31 Cisco Technology, Inc. Efficient random number generation for communication systems
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US7054348B2 (en) * 2001-11-15 2006-05-30 Koninklijke Philips Electronic N.V. Using real random number generator as proof of time
US7038910B1 (en) 2002-01-07 2006-05-02 Wave7 Optics, Inc. System and method for removing heat from a subscriber optical interface
US7583897B2 (en) 2002-01-08 2009-09-01 Enablence Usa Fttx Networks Inc. Optical network system and method for supporting upstream signals propagated according to a cable modem protocol
US7142675B2 (en) * 2002-02-12 2006-11-28 City University Of Hong Kong Sequence generator and method of generating a pseudo random sequence
US7571200B2 (en) * 2002-04-24 2009-08-04 Hewlett-Packard Development Company, L.P. Seedable pseudo-random number generator
US7623786B2 (en) 2002-05-20 2009-11-24 Enablence Usa Fttx Networks, Inc. System and method for communicating optical signals to multiple subscribers having various bandwidth demands connected to the same optical waveguide
US7248696B2 (en) * 2002-09-12 2007-07-24 International Business Machines Corporation Dynamic system bus encryption using improved differential transitional encoding
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US7590674B2 (en) * 2005-06-30 2009-09-15 Conexant Systems, Inc. Method and apparatus for generating a random bit stream
US7616901B2 (en) 2005-08-10 2009-11-10 Enablence Usa Fttx Networks Inc. Countermeasures for idle pattern SRS interference in ethernet optical network systems
FR2899702A1 (en) * 2006-04-10 2007-10-12 France Telecom METHOD AND DEVICE FOR GENERATING A PSEUDO-RANDOM SUITE
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Also Published As

Publication number Publication date
DE69429157T2 (en) 2002-06-06
EP0672273A4 (en) 1997-05-28
KR0168504B1 (en) 1999-01-15
US5365585A (en) 1994-11-15
DE69429157D1 (en) 2002-01-03
GB9507790D0 (en) 1995-06-14
FI951946A (en) 1995-04-25
JPH08503569A (en) 1996-04-16
KR950704733A (en) 1995-11-20
WO1995006906A1 (en) 1995-03-09
GB2286274A (en) 1995-08-09
FI951946A0 (en) 1995-04-25
EP0672273A1 (en) 1995-09-20
CA2146439A1 (en) 1995-03-09
BR9405567A (en) 1999-09-08
SG76452A1 (en) 2000-11-21
EP0672273B1 (en) 2001-11-21
CA2146439C (en) 1998-09-22
GB2286274B (en) 1997-07-09

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PE Patent expired

Effective date: 20140710